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Calculating BK's Dog Food Needs: A Math Problem Solving Adventure

Join BK, a dog with specific food requirements, on a journey to determine how much dog food is needed for a month. Through fractions, addition, subtraction, and conversions, solve the problem using mathematical operations. Understand BK's feeding schedule, food quantity, and bag sizes for an engaging learning experience in math.

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Calculating BK's Dog Food Needs: A Math Problem Solving Adventure

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  1. How Much Dog Food? By Victoria Kin

  2. TEKS • (4.2) Number, operation, and quantitative reasoning. The student describes and compares fractional parts of whole objects or sets of objects. The student is expected to: (A) use concrete objects and pictorial models to generate equivalent fractions. • (4.3) Number, operation, and quantitative reasoning. The student adds and subtracts to solve meaningful problems involving whole numbers and decimals. The student is expected to: (A) use addition and subtraction to solve problems involving whole numbers. • (4.4) Number, operation, and quantitative reasoning. The student multiplies and divides to solve meaningful problems involving whole numbers. The student is expected to: (D) use multiplication to solve problems (no more than two digits times two digits without technology); (E) use division to solve problems (no more than one-digit divisors and three-digit dividends without technology). • (4.11) Measurement. The student applies measurement concepts. The student is expected to estimate and measure to solve problems involving length (including perimeter) and area. The student uses measurement tools to measure capacity/volume and weight/mass. The student is expected to: (B) perform simple conversions between different units of length, between different units of capacity, and between different units of weight within the customary measurement system.

  3. It’s time for BK’s dinner. Uh-oh! Looks like we need to get more dog food for BK.

  4. At the pet store…. • BK’s dog food comes in three sizes: 5-pound, 17-pound, and 35-pound bag. • The 17-pound and 35-pound bags are too big and heavy to carry.

  5. I wonder how much dog food BK eats in a month. Will a 5 pound bag of dog food last for a month?

  6. Let’s gather some facts… • BK eats 1/4 cup of food each meal. • She eats twice a day. • There are 30 days in November. • 1 cup = 8 ounces • 16 ounces = 1 pound

  7. How much food does BK eat in a month? • BK eats 1/4 cup of food each meal, and she eats twice a day. 2 x 1/4 cup = 1/2 cup, which means she eats 1/2 cup a day. • 1/2 cup x 30 days = 15 cups per month.

  8. How many pounds are 15 cups? • First, I need to find out how many ounces 15 cups are. 1 cup = 8 ounces, this means 15 x 8 ounces = 120 ounces. • Since it takes 16 ounces to convert into 1 pound, then 120 ounces must be divided by 16 120 ounces  16 = 7.5. • BK eats 7.5 pounds of food each month.

  9. Will a 5-pound bag be enough for 1 month? • A 5-pound bag is not enough for BK, because she eats 7.5 pounds of food for a month. • 7.5 - 5 = 2.5 • This means BK need 2.5 pounds of food in addition to the 5-pound bag.

  10. BK needs more dog food! • If I need the food to last at least a month, I will have to buy the larger bag of dog food for her.

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